1e41f4b71Sopenharmony_ci# SoundPool (音频池)
2e41f4b71Sopenharmony_ci
3e41f4b71Sopenharmony_ci音频池提供了短音频的加载、播放、音量设置、循环设置、停止播放、资源卸载等功能。
4e41f4b71Sopenharmony_ci
5e41f4b71Sopenharmony_ciSoundPool需要和@ohos.multimedia.media配合使用,需要先通过[media.createSoundPool](js-apis-media.md#mediacreatesoundpool10)完成音频池实例的创建。
6e41f4b71Sopenharmony_ci
7e41f4b71Sopenharmony_ci> **说明:**
8e41f4b71Sopenharmony_ci>
9e41f4b71Sopenharmony_ci> 本模块首批接口从API version 10开始支持。后续版本的新增接口,采用上角标单独标记接口的起始版本。
10e41f4b71Sopenharmony_ci
11e41f4b71Sopenharmony_ci## 导入模块
12e41f4b71Sopenharmony_ci
13e41f4b71Sopenharmony_ci```js
14e41f4b71Sopenharmony_ciimport { media } from '@kit.MediaKit';
15e41f4b71Sopenharmony_ciimport { audio } from '@kit.AudioKit';
16e41f4b71Sopenharmony_ci```
17e41f4b71Sopenharmony_ci
18e41f4b71Sopenharmony_ci## PlayParameters
19e41f4b71Sopenharmony_ci
20e41f4b71Sopenharmony_ci表示音频池播放参数设置。
21e41f4b71Sopenharmony_ci
22e41f4b71Sopenharmony_ci通过设置播放相关参数,来控制播放的音量,循环次数,播放优先级等参数。
23e41f4b71Sopenharmony_ci
24e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
25e41f4b71Sopenharmony_ci
26e41f4b71Sopenharmony_ci| 名称            | 类型                                     | 必填 | 说明                                                         |
27e41f4b71Sopenharmony_ci| --------------- | ---------------------------------------- | ---- | ------------------------------------------------------------ |
28e41f4b71Sopenharmony_ci| loop | number   | 否  | 设置循环参数,0为循环一次,-1表示一直循环。默认值:0。                   |
29e41f4b71Sopenharmony_ci| rate | number    | 否  | 设置音频播放的倍速,具体倍速范围参照[AudioRendererRate](../apis-audio-kit/js-apis-audio.md#audiorendererrate8)。默认值:0。 |
30e41f4b71Sopenharmony_ci| leftVolume  | number | 否  | 设置左声道音量,设置范围(0.0~1.0)。默认值:1.0。                                    |
31e41f4b71Sopenharmony_ci| rightVolume | number  | 否  | 设置右声道音量。(当前不支持左右分别设置,将以左声道音量为准)。默认值:1.0。 |
32e41f4b71Sopenharmony_ci| priority  | number  | 否  | 音频流播放的优先级,0为最低优先级,数值越大优先级越高,通过相互比较大小确定播放优先级。默认值:0。      |
33e41f4b71Sopenharmony_ci
34e41f4b71Sopenharmony_ci## SoundPool
35e41f4b71Sopenharmony_ci
36e41f4b71Sopenharmony_ci音频池提供了系统声音的加载、播放、音量设置、循环设置、停止播放、资源卸载等功能, 在调用SoundPool的接口前,需要先通过[createSoundPool](js-apis-media.md#mediacreatesoundpool10)创建实例。
37e41f4b71Sopenharmony_ci
38e41f4b71Sopenharmony_ci> **说明:**
39e41f4b71Sopenharmony_ci>
40e41f4b71Sopenharmony_ci> 在使用SoundPool实例的方法时,建议开发者注册相关回调,主动获取当前状态变化。
41e41f4b71Sopenharmony_ci> - [on('loadComplete')](#onloadcomplete):监听资源加载完成。
42e41f4b71Sopenharmony_ci> - [on('playFinished')](#onplayfinished):监听播放完成。
43e41f4b71Sopenharmony_ci> - [on('error')](#onerror):监听错误事件。
44e41f4b71Sopenharmony_ci
45e41f4b71Sopenharmony_ci### load
46e41f4b71Sopenharmony_ci
47e41f4b71Sopenharmony_ciload(uri: string, callback: AsyncCallback\<number>): void
48e41f4b71Sopenharmony_ci
49e41f4b71Sopenharmony_ci加载音频资源。使用callback方式异步获取资源ID,入参uri通过获取文件fd生成以"fd://"开头的文件描述字符串。
50e41f4b71Sopenharmony_ci该方法不支持加载rawfile目录资源,需要通过[load(fd: number, offset: number, length: number, callback: AsyncCallback\<number>): void](#load-2)或者[load(fd: number, offset: number, length: number): Promise\<number>](#load-3)实现。
51e41f4b71Sopenharmony_ci
52e41f4b71Sopenharmony_ci>**说明:**
53e41f4b71Sopenharmony_ci>
54e41f4b71Sopenharmony_ci>将资源句柄(fd)或加载路径描述(uri)传递给音频池播放器之后,请不要通过该资源句柄或加载路径描述做其他读写操作,包括但不限于将同一个资源句柄或加载路径描述传递给多个音频池播放器。
55e41f4b71Sopenharmony_ci>同一时间通过同一个资源句柄或加载路径描述读写文件时存在竞争关系,将导致播放异常。
56e41f4b71Sopenharmony_ci
57e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
58e41f4b71Sopenharmony_ci
59e41f4b71Sopenharmony_ci**参数:**
60e41f4b71Sopenharmony_ci
61e41f4b71Sopenharmony_ci| 参数名   | 类型                                   | 必填 | 说明                                  |
62e41f4b71Sopenharmony_ci| -------- | -------------------------------------- | ---- | ------------------------------------- |
63e41f4b71Sopenharmony_ci| uri   | string | 是   | 音频文件的加载路径描述,一般以"fd://"开头的文件描述。 |
64e41f4b71Sopenharmony_ci| callback | AsyncCallback\<number>                   | 是   | 异步音频资源加载返回的资源id,有效值大于0。 |
65e41f4b71Sopenharmony_ci
66e41f4b71Sopenharmony_ci**错误码:**
67e41f4b71Sopenharmony_ci
68e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
69e41f4b71Sopenharmony_ci
70e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
71e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
72e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by callback.|
73e41f4b71Sopenharmony_ci| 5400103  | I/O error. Return by callback. |
74e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by callback. |
75e41f4b71Sopenharmony_ci
76e41f4b71Sopenharmony_ci**示例:**
77e41f4b71Sopenharmony_ci
78e41f4b71Sopenharmony_ci```ts
79e41f4b71Sopenharmony_ciimport { fileIo } from '@kit.CoreFileKit';
80e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
81e41f4b71Sopenharmony_ci
82e41f4b71Sopenharmony_ci//创建soundPool实例
83e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
84e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
85e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
86e41f4b71Sopenharmony_ci  rendererFlags: 1
87e41f4b71Sopenharmony_ci}
88e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
89e41f4b71Sopenharmony_ci  if (error) {
90e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
91e41f4b71Sopenharmony_ci    return;
92e41f4b71Sopenharmony_ci  } else {
93e41f4b71Sopenharmony_ci    soundPool = soundPool_;
94e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
95e41f4b71Sopenharmony_ci    let uri:string = "";
96e41f4b71Sopenharmony_ci    let file: fileIo.File;
97e41f4b71Sopenharmony_ci    //获取fd的uri路径
98e41f4b71Sopenharmony_ci    fileIo.open('/test_01.mp3', fileIo.OpenMode.READ_ONLY).then((file_: fileIo.File) => {
99e41f4b71Sopenharmony_ci      file = file_;
100e41f4b71Sopenharmony_ci      console.info("file fd: " + file.fd);
101e41f4b71Sopenharmony_ci      uri = 'fd://' + (file.fd).toString()
102e41f4b71Sopenharmony_ci      soundPool.load(uri, (error: BusinessError, soundId_: number) => {
103e41f4b71Sopenharmony_ci        if (error) {
104e41f4b71Sopenharmony_ci          console.error(`Failed to load soundPool: errCode is ${error.code}, errMessage is ${error.message}`)
105e41f4b71Sopenharmony_ci        } else {
106e41f4b71Sopenharmony_ci          console.info(`Succeeded in loading soundPool` + JSON.stringify(soundId_))
107e41f4b71Sopenharmony_ci        }
108e41f4b71Sopenharmony_ci      });
109e41f4b71Sopenharmony_ci    }); // '/test_01.mp3' 作为样例,使用时需要传入文件对应路径。
110e41f4b71Sopenharmony_ci  }
111e41f4b71Sopenharmony_ci});
112e41f4b71Sopenharmony_ci```
113e41f4b71Sopenharmony_ci
114e41f4b71Sopenharmony_ci### load
115e41f4b71Sopenharmony_ci
116e41f4b71Sopenharmony_ciload(uri: string): Promise\<number>
117e41f4b71Sopenharmony_ci
118e41f4b71Sopenharmony_ci加载音频资源。使用Promise方式异步获取资源ID,入参uri通过获取文件fd生成以"fd://"开头的文件描述字符串。
119e41f4b71Sopenharmony_ci该方法不支持加载rawfile目录资源,需要通过[load(fd: number, offset: number, length: number, callback: AsyncCallback\<number>): void](#load-2)或者[load(fd: number, offset: number, length: number): Promise\<number>](#load-3)实现。
120e41f4b71Sopenharmony_ci
121e41f4b71Sopenharmony_ci>**说明:**
122e41f4b71Sopenharmony_ci>
123e41f4b71Sopenharmony_ci>将资源句柄(fd)或加载路径描述(uri)传递给音频池播放器之后,请不要通过该资源句柄或加载路径描述做其他读写操作,包括但不限于将同一个资源句柄或加载路径描述传递给多个音频池播放器。
124e41f4b71Sopenharmony_ci>同一时间通过同一个资源句柄或加载路径描述读写文件时存在竞争关系,将导致播放异常。
125e41f4b71Sopenharmony_ci
126e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
127e41f4b71Sopenharmony_ci
128e41f4b71Sopenharmony_ci**参数:**
129e41f4b71Sopenharmony_ci
130e41f4b71Sopenharmony_ci| 参数名 | 类型                                   | 必填 | 说明                       |
131e41f4b71Sopenharmony_ci| ------ | -------------------------------------- | ---- | -------------------------- |
132e41f4b71Sopenharmony_ci| uri | string | 是   | 音频文件的加载路径描述,一般以"fd://"开头的文件描述。 |
133e41f4b71Sopenharmony_ci
134e41f4b71Sopenharmony_ci**返回值:**
135e41f4b71Sopenharmony_ci
136e41f4b71Sopenharmony_ci| 类型           | 说明                                       |
137e41f4b71Sopenharmony_ci| -------------- | ------------------------------------------ |
138e41f4b71Sopenharmony_ci| Promise\<number> | 以Promise方式异步加载音频池资源,返回资源的id,有效值大于0。 |
139e41f4b71Sopenharmony_ci
140e41f4b71Sopenharmony_ci**错误码:**
141e41f4b71Sopenharmony_ci
142e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
143e41f4b71Sopenharmony_ci
144e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
145e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
146e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by promise.|
147e41f4b71Sopenharmony_ci| 5400103  | I/O error. Return by promise. |
148e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by promise. |
149e41f4b71Sopenharmony_ci
150e41f4b71Sopenharmony_ci**示例:**
151e41f4b71Sopenharmony_ci
152e41f4b71Sopenharmony_ci```ts
153e41f4b71Sopenharmony_ciimport { fileIo } from '@kit.CoreFileKit';
154e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
155e41f4b71Sopenharmony_ci
156e41f4b71Sopenharmony_ci//创建soundPool实例
157e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
158e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
159e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
160e41f4b71Sopenharmony_ci  rendererFlags: 1
161e41f4b71Sopenharmony_ci}
162e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
163e41f4b71Sopenharmony_ci  if (error) {
164e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
165e41f4b71Sopenharmony_ci    return;
166e41f4b71Sopenharmony_ci  } else {
167e41f4b71Sopenharmony_ci    soundPool = soundPool_;
168e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
169e41f4b71Sopenharmony_ci    let uri:string = "";
170e41f4b71Sopenharmony_ci    let soundID: number = 0;
171e41f4b71Sopenharmony_ci    let file: fileIo.File;
172e41f4b71Sopenharmony_ci    //获取fd的uri路径
173e41f4b71Sopenharmony_ci    fileIo.open('/test_01.mp3', fileIo.OpenMode.READ_ONLY).then((file_: fileIo.File) => {
174e41f4b71Sopenharmony_ci      file = file_;
175e41f4b71Sopenharmony_ci      console.info("file fd: " + file.fd);
176e41f4b71Sopenharmony_ci      uri = 'fd://' + (file.fd).toString()
177e41f4b71Sopenharmony_ci      soundPool.load(uri).then((soundId: number) => {
178e41f4b71Sopenharmony_ci        console.info('Succeeded in loading uri');
179e41f4b71Sopenharmony_ci        soundID = soundId;
180e41f4b71Sopenharmony_ci      }, (err: BusinessError) => {
181e41f4b71Sopenharmony_ci        console.error('Failed to load soundPool and catch error is ' + err.message);
182e41f4b71Sopenharmony_ci      });
183e41f4b71Sopenharmony_ci    }); // '/test_01.mp3' 作为样例,使用时需要传入文件对应路径。
184e41f4b71Sopenharmony_ci  }
185e41f4b71Sopenharmony_ci});
186e41f4b71Sopenharmony_ci
187e41f4b71Sopenharmony_ci```
188e41f4b71Sopenharmony_ci
189e41f4b71Sopenharmony_ci### load
190e41f4b71Sopenharmony_ci
191e41f4b71Sopenharmony_ciload(fd: number, offset: number, length: number, callback: AsyncCallback\<number>): void
192e41f4b71Sopenharmony_ci
193e41f4b71Sopenharmony_ci加载音频资源。使用callback方式异步获取资源ID,入参可手动传入资源信息或通过读取应用内置资源自动获取。
194e41f4b71Sopenharmony_ci
195e41f4b71Sopenharmony_ci>**说明:**
196e41f4b71Sopenharmony_ci>
197e41f4b71Sopenharmony_ci>将资源句柄(fd)或加载路径描述(uri)传递给音频池播放器之后,请不要通过该资源句柄或加载路径描述做其他读写操作,包括但不限于将同一个资源句柄或加载路径描述传递给多个音频池播放器。
198e41f4b71Sopenharmony_ci>同一时间通过同一个资源句柄或加载路径描述读写文件时存在竞争关系,将导致播放异常。
199e41f4b71Sopenharmony_ci
200e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
201e41f4b71Sopenharmony_ci
202e41f4b71Sopenharmony_ci**参数:**
203e41f4b71Sopenharmony_ci
204e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
205e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
206e41f4b71Sopenharmony_ci| fd     | number | 是   | 资源句柄,通过resourceManager.getRawFileDescriptor获取。     |
207e41f4b71Sopenharmony_ci| offset | number | 是   | 资源偏移量,需要基于预置资源的信息输入,非法值会造成音视频资源解析错误。 |
208e41f4b71Sopenharmony_ci| length | number | 是   | 资源长度,需要基于预置资源的信息输入,非法值会造成音视频资源解析错误。 |
209e41f4b71Sopenharmony_ci| callback | AsyncCallback\<number> | 是   | 获取回调的soundID,有效值大于0。 |
210e41f4b71Sopenharmony_ci
211e41f4b71Sopenharmony_ci**错误码:**
212e41f4b71Sopenharmony_ci
213e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
214e41f4b71Sopenharmony_ci
215e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
216e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
217e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by callback. |
218e41f4b71Sopenharmony_ci| 5400103  | I/O error. Return by callback. |
219e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by callback.       |
220e41f4b71Sopenharmony_ci
221e41f4b71Sopenharmony_ci**示例1:**
222e41f4b71Sopenharmony_ci
223e41f4b71Sopenharmony_ci```ts
224e41f4b71Sopenharmony_ciimport { fileIo } from '@kit.CoreFileKit';
225e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
226e41f4b71Sopenharmony_ci
227e41f4b71Sopenharmony_ci//创建soundPool实例
228e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
229e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
230e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
231e41f4b71Sopenharmony_ci  rendererFlags: 1
232e41f4b71Sopenharmony_ci}
233e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
234e41f4b71Sopenharmony_ci  if (error) {
235e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
236e41f4b71Sopenharmony_ci    return;
237e41f4b71Sopenharmony_ci  } else {
238e41f4b71Sopenharmony_ci    soundPool = soundPool_;
239e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
240e41f4b71Sopenharmony_ci    let file: fileIo.File;
241e41f4b71Sopenharmony_ci    let soundID: number = 0;
242e41f4b71Sopenharmony_ci    let fileSize: number = 1; //通过fileIo.stat()获取size值
243e41f4b71Sopenharmony_ci    let uri: string = "";
244e41f4b71Sopenharmony_ci    //获取fd的描述信息,test_01.mp3不是rawfile目录资源下面的音频
245e41f4b71Sopenharmony_ci    fileIo.open('/test_01.mp3', fileIo.OpenMode.READ_ONLY).then((file_: fileIo.File) => {
246e41f4b71Sopenharmony_ci      file = file_;
247e41f4b71Sopenharmony_ci      console.info("file fd: " + file.fd);
248e41f4b71Sopenharmony_ci      uri = 'fd://' + (file.fd).toString()
249e41f4b71Sopenharmony_ci      soundPool.load(file.fd, 0, fileSize, (error: BusinessError, soundId_: number) => {
250e41f4b71Sopenharmony_ci        if (error) {
251e41f4b71Sopenharmony_ci          console.error(`Failed to load soundPool: errCode is ${error.code}, errMessage is ${error.message}`)
252e41f4b71Sopenharmony_ci        } else {
253e41f4b71Sopenharmony_ci          soundID = soundId_;
254e41f4b71Sopenharmony_ci          console.info('Succeeded in loading soundId:' + soundId_);
255e41f4b71Sopenharmony_ci        }
256e41f4b71Sopenharmony_ci      });
257e41f4b71Sopenharmony_ci    }); // '/test_01.mp3' 作为样例,使用时需要传入文件对应路径。
258e41f4b71Sopenharmony_ci  }
259e41f4b71Sopenharmony_ci});
260e41f4b71Sopenharmony_ci
261e41f4b71Sopenharmony_ci```
262e41f4b71Sopenharmony_ci
263e41f4b71Sopenharmony_ci**示例2:**
264e41f4b71Sopenharmony_ci
265e41f4b71Sopenharmony_ci```ts
266e41f4b71Sopenharmony_ciimport { media } from '@kit.MediaKit';
267e41f4b71Sopenharmony_ciimport { audio } from '@kit.AudioKit';
268e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
269e41f4b71Sopenharmony_ci
270e41f4b71Sopenharmony_ci//创建soundPool实例
271e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
272e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
273e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
274e41f4b71Sopenharmony_ci  rendererFlags: 1
275e41f4b71Sopenharmony_ci}
276e41f4b71Sopenharmony_cilet soundID: number = 0;
277e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
278e41f4b71Sopenharmony_ci  if (error) {
279e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
280e41f4b71Sopenharmony_ci    return;
281e41f4b71Sopenharmony_ci  } else {
282e41f4b71Sopenharmony_ci    soundPool = soundPool_;
283e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
284e41f4b71Sopenharmony_ci    //test_01.mp3为rawfile目录资源下面的音频
285e41f4b71Sopenharmony_ci    let fileDescriptor = await getContext().resourceManager.getRawFd('test_01.mp3');
286e41f4b71Sopenharmony_ci    soundPool.load(fileDescriptor.fd, fileDescriptor.offset, fileDescriptor.length, (error: BusinessError, soundId_: number) => {
287e41f4b71Sopenharmony_ci      if (error) {
288e41f4b71Sopenharmony_ci        console.error(`Failed to load soundPool: errCode is ${error.code}, errMessage is ${error.message}`)
289e41f4b71Sopenharmony_ci      } else {
290e41f4b71Sopenharmony_ci        soundID = soundId_;
291e41f4b71Sopenharmony_ci        console.info('Succeeded in loading soundId:' + soundId_);
292e41f4b71Sopenharmony_ci      }
293e41f4b71Sopenharmony_ci    });
294e41f4b71Sopenharmony_ci  }
295e41f4b71Sopenharmony_ci});
296e41f4b71Sopenharmony_ci
297e41f4b71Sopenharmony_ci```
298e41f4b71Sopenharmony_ci
299e41f4b71Sopenharmony_ci### load
300e41f4b71Sopenharmony_ci
301e41f4b71Sopenharmony_ciload(fd: number, offset: number, length: number): Promise\<number>
302e41f4b71Sopenharmony_ci
303e41f4b71Sopenharmony_ci加载音频资源。使用Promise方式异步获取资源ID,入参可手动传入资源信息或通过读取应用内置资源自动获取。
304e41f4b71Sopenharmony_ci
305e41f4b71Sopenharmony_ci>**说明:**
306e41f4b71Sopenharmony_ci>
307e41f4b71Sopenharmony_ci>将资源句柄(fd)或加载路径描述(uri)传递给音频池播放器之后,请不要通过该资源句柄或加载路径描述做其他读写操作,包括但不限于将同一个资源句柄或加载路径描述传递给多个音频池播放器。
308e41f4b71Sopenharmony_ci>同一时间通过同一个资源句柄或加载路径描述读写文件时存在竞争关系,将导致播放异常。
309e41f4b71Sopenharmony_ci
310e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
311e41f4b71Sopenharmony_ci
312e41f4b71Sopenharmony_ci**参数:**
313e41f4b71Sopenharmony_ci
314e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
315e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
316e41f4b71Sopenharmony_ci| fd     | number | 是   | 资源句柄,通过resourceManager.getRawFileDescriptor获取。     |
317e41f4b71Sopenharmony_ci| offset | number | 是   | 资源偏移量,需要基于预置资源的信息输入,非法值会造成音视频资源解析错误。 |
318e41f4b71Sopenharmony_ci| length | number | 是   | 资源长度,需要基于预置资源的信息输入,非法值会造成音视频资源解析错误。 |
319e41f4b71Sopenharmony_ci
320e41f4b71Sopenharmony_ci**返回值:**
321e41f4b71Sopenharmony_ci
322e41f4b71Sopenharmony_ci| 类型             | 说明                             |
323e41f4b71Sopenharmony_ci| ---------------- | -------------------------------- |
324e41f4b71Sopenharmony_ci| Promise\<number> | 以Promise方式获取返回的soundID,有效值大于0。 |
325e41f4b71Sopenharmony_ci
326e41f4b71Sopenharmony_ci**错误码:**
327e41f4b71Sopenharmony_ci
328e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
329e41f4b71Sopenharmony_ci
330e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
331e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
332e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by promise.|
333e41f4b71Sopenharmony_ci| 5400103  | I/O error. Return by promise. |
334e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by promise. |
335e41f4b71Sopenharmony_ci
336e41f4b71Sopenharmony_ci**示例1:**
337e41f4b71Sopenharmony_ci
338e41f4b71Sopenharmony_ci```ts
339e41f4b71Sopenharmony_ciimport { fileIo } from '@kit.CoreFileKit';
340e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
341e41f4b71Sopenharmony_ci
342e41f4b71Sopenharmony_ci//创建soundPool实例
343e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
344e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
345e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
346e41f4b71Sopenharmony_ci  rendererFlags: 1
347e41f4b71Sopenharmony_ci}
348e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
349e41f4b71Sopenharmony_ci  if (error) {
350e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
351e41f4b71Sopenharmony_ci    return;
352e41f4b71Sopenharmony_ci  } else {
353e41f4b71Sopenharmony_ci    soundPool = soundPool_;
354e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
355e41f4b71Sopenharmony_ci    let file: fileIo.File;
356e41f4b71Sopenharmony_ci    let soundID: number = 0;
357e41f4b71Sopenharmony_ci    let fileSize: number = 1; //通过fileIo.stat()获取size值
358e41f4b71Sopenharmony_ci    let uri: string = "";
359e41f4b71Sopenharmony_ci    //获取fd的描述信息,test_01.mp3不是rawfile目录资源下面的音频
360e41f4b71Sopenharmony_ci    fileIo.open('/test_01.mp3', fileIo.OpenMode.READ_ONLY).then((file_: fileIo.File) => {
361e41f4b71Sopenharmony_ci      file = file_;
362e41f4b71Sopenharmony_ci      console.info("file fd: " + file.fd);
363e41f4b71Sopenharmony_ci      uri = 'fd://' + (file.fd).toString()
364e41f4b71Sopenharmony_ci      soundPool.load(file.fd, 0, fileSize).then((soundId: number) => {
365e41f4b71Sopenharmony_ci        console.info('Succeeded in loading soundpool');
366e41f4b71Sopenharmony_ci        soundID = soundId;
367e41f4b71Sopenharmony_ci      }, (err: BusinessError) => {
368e41f4b71Sopenharmony_ci        console.error('Failed to load soundpool and catch error is ' + err.message);
369e41f4b71Sopenharmony_ci      });
370e41f4b71Sopenharmony_ci    });
371e41f4b71Sopenharmony_ci  }
372e41f4b71Sopenharmony_ci});
373e41f4b71Sopenharmony_ci
374e41f4b71Sopenharmony_ci```
375e41f4b71Sopenharmony_ci
376e41f4b71Sopenharmony_ci**示例2:**
377e41f4b71Sopenharmony_ci
378e41f4b71Sopenharmony_ci```ts
379e41f4b71Sopenharmony_ciimport { media } from '@kit.MediaKit';
380e41f4b71Sopenharmony_ciimport { audio } from '@kit.AudioKit';
381e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
382e41f4b71Sopenharmony_ci
383e41f4b71Sopenharmony_ci//创建soundPool实例
384e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
385e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
386e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
387e41f4b71Sopenharmony_ci  rendererFlags: 1
388e41f4b71Sopenharmony_ci}
389e41f4b71Sopenharmony_cilet soundID: number = 0;
390e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
391e41f4b71Sopenharmony_ci  if (error) {
392e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
393e41f4b71Sopenharmony_ci    return;
394e41f4b71Sopenharmony_ci  } else {
395e41f4b71Sopenharmony_ci    soundPool = soundPool_;
396e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
397e41f4b71Sopenharmony_ci    //test_01.mp3为rawfile目录资源下面的音频
398e41f4b71Sopenharmony_ci    let fileDescriptor = await getContext().resourceManager.getRawFd('test_01.mp3');
399e41f4b71Sopenharmony_ci    soundPool.load(fileDescriptor.fd, fileDescriptor.offset, fileDescriptor.length).then((soundId: number) => {
400e41f4b71Sopenharmony_ci      console.info('Succeeded in loading soundpool');
401e41f4b71Sopenharmony_ci      soundID = soundId;
402e41f4b71Sopenharmony_ci    }, (err: BusinessError) => {
403e41f4b71Sopenharmony_ci      console.error('Failed to load soundpool and catch error is ' + err.message);
404e41f4b71Sopenharmony_ci    });
405e41f4b71Sopenharmony_ci  }
406e41f4b71Sopenharmony_ci});
407e41f4b71Sopenharmony_ci
408e41f4b71Sopenharmony_ci```
409e41f4b71Sopenharmony_ci
410e41f4b71Sopenharmony_ci### play
411e41f4b71Sopenharmony_ci
412e41f4b71Sopenharmony_ciplay(soundID: number, params: PlayParameters, callback: AsyncCallback\<number>): void
413e41f4b71Sopenharmony_ci
414e41f4b71Sopenharmony_ci播放音频资源。使用callback方式异步获取音频流streamID。
415e41f4b71Sopenharmony_ci
416e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
417e41f4b71Sopenharmony_ci
418e41f4b71Sopenharmony_ci**参数:**
419e41f4b71Sopenharmony_ci
420e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
421e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
422e41f4b71Sopenharmony_ci| soundID | number | 是   | 资源ID,通过load方法获取。 |
423e41f4b71Sopenharmony_ci| params | [PlayParameters](#playparameters) | 是  | play播放相关参数的设置。 |
424e41f4b71Sopenharmony_ci| callback | AsyncCallback\<number> | 是   | 获取回调的音频流ID,有效值大于0。 |
425e41f4b71Sopenharmony_ci
426e41f4b71Sopenharmony_ci**错误码:**
427e41f4b71Sopenharmony_ci
428e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
429e41f4b71Sopenharmony_ci
430e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
431e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
432e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by callback. |
433e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by callback. |
434e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by callback.       |
435e41f4b71Sopenharmony_ci
436e41f4b71Sopenharmony_ci**示例:**
437e41f4b71Sopenharmony_ci
438e41f4b71Sopenharmony_ci```js
439e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
440e41f4b71Sopenharmony_ci
441e41f4b71Sopenharmony_ci//创建soundPool实例
442e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
443e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
444e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
445e41f4b71Sopenharmony_ci  rendererFlags: 1
446e41f4b71Sopenharmony_ci}
447e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
448e41f4b71Sopenharmony_ci  if (error) {
449e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
450e41f4b71Sopenharmony_ci    return;
451e41f4b71Sopenharmony_ci  } else {
452e41f4b71Sopenharmony_ci    soundPool = soundPool_;
453e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
454e41f4b71Sopenharmony_ci    let soundID: number = 0;
455e41f4b71Sopenharmony_ci    let streamID: number = 0;
456e41f4b71Sopenharmony_ci    let playParameters: media.PlayParameters = {
457e41f4b71Sopenharmony_ci      loop: 3, // 循环3次
458e41f4b71Sopenharmony_ci      rate: audio.AudioRendererRate.RENDER_RATE_NORMAL, // 正常倍速
459e41f4b71Sopenharmony_ci      leftVolume: 0.5, // range = 0.0-1.0
460e41f4b71Sopenharmony_ci      rightVolume: 0.5, // range = 0.0-1.0
461e41f4b71Sopenharmony_ci      priority: 0, // 最低优先级
462e41f4b71Sopenharmony_ci    }
463e41f4b71Sopenharmony_ci    soundPool.play(soundID, playParameters, (error: BusinessError, streamId: number) => {
464e41f4b71Sopenharmony_ci      if (error) {
465e41f4b71Sopenharmony_ci        console.error(`Failed to play soundpool: errCode is ${error.code}, errMessage is ${error.message}`)
466e41f4b71Sopenharmony_ci      } else {
467e41f4b71Sopenharmony_ci        streamID = streamId;
468e41f4b71Sopenharmony_ci        console.info('Succeeded in playing soundpool, streamId:' + streamId);
469e41f4b71Sopenharmony_ci      }
470e41f4b71Sopenharmony_ci    });
471e41f4b71Sopenharmony_ci  }
472e41f4b71Sopenharmony_ci});
473e41f4b71Sopenharmony_ci
474e41f4b71Sopenharmony_ci```
475e41f4b71Sopenharmony_ci
476e41f4b71Sopenharmony_ci### play
477e41f4b71Sopenharmony_ci
478e41f4b71Sopenharmony_ciplay(soundID: number, callback: AsyncCallback\<number>): void
479e41f4b71Sopenharmony_ci
480e41f4b71Sopenharmony_ci播放音频资源。使用callback方式异步获取音频流streamID。
481e41f4b71Sopenharmony_ci
482e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
483e41f4b71Sopenharmony_ci
484e41f4b71Sopenharmony_ci**参数:**
485e41f4b71Sopenharmony_ci
486e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
487e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
488e41f4b71Sopenharmony_ci| soundID | number | 是   | 资源ID,通过load方法获取。 |
489e41f4b71Sopenharmony_ci| callback | AsyncCallback\<number> | 是   | 获取回调的音频流ID,有效值大于0。 |
490e41f4b71Sopenharmony_ci
491e41f4b71Sopenharmony_ci**错误码:**
492e41f4b71Sopenharmony_ci
493e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
494e41f4b71Sopenharmony_ci
495e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
496e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
497e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by callback. |
498e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by callback. |
499e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by callback.       |
500e41f4b71Sopenharmony_ci
501e41f4b71Sopenharmony_ci**示例:**
502e41f4b71Sopenharmony_ci
503e41f4b71Sopenharmony_ci```js
504e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
505e41f4b71Sopenharmony_ci
506e41f4b71Sopenharmony_ci//创建soundPool实例
507e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
508e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
509e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
510e41f4b71Sopenharmony_ci  rendererFlags: 1
511e41f4b71Sopenharmony_ci}
512e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
513e41f4b71Sopenharmony_ci  if (error) {
514e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
515e41f4b71Sopenharmony_ci    return;
516e41f4b71Sopenharmony_ci  } else {
517e41f4b71Sopenharmony_ci    soundPool = soundPool_;
518e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
519e41f4b71Sopenharmony_ci    let soundID: number = 0;
520e41f4b71Sopenharmony_ci    let streamID: number = 0;
521e41f4b71Sopenharmony_ci    soundPool.play(soundID,  (error: BusinessError, streamId: number) => {
522e41f4b71Sopenharmony_ci      if (error) {
523e41f4b71Sopenharmony_ci        console.error(`Failed to play soundpool: errCode is ${error.code}, errMessage is ${error.message}`)
524e41f4b71Sopenharmony_ci      } else {
525e41f4b71Sopenharmony_ci        streamID = streamId;
526e41f4b71Sopenharmony_ci        console.info('Succeeded in playing soundpool, streamId:' + streamId);
527e41f4b71Sopenharmony_ci      }
528e41f4b71Sopenharmony_ci    });
529e41f4b71Sopenharmony_ci  }
530e41f4b71Sopenharmony_ci});
531e41f4b71Sopenharmony_ci
532e41f4b71Sopenharmony_ci```
533e41f4b71Sopenharmony_ci
534e41f4b71Sopenharmony_ci### play
535e41f4b71Sopenharmony_ci
536e41f4b71Sopenharmony_ciplay(soundID: number, params?: PlayParameters): Promise\<number>
537e41f4b71Sopenharmony_ci
538e41f4b71Sopenharmony_ci播放音频资源。使用Promise方式异步获取音频流streamID。
539e41f4b71Sopenharmony_ci
540e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
541e41f4b71Sopenharmony_ci
542e41f4b71Sopenharmony_ci**参数:**
543e41f4b71Sopenharmony_ci
544e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
545e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
546e41f4b71Sopenharmony_ci| soundID | number | 是   | 资源ID,通过load方法获取。 |
547e41f4b71Sopenharmony_ci| params | [PlayParameters](#playparameters) | 否  | play播放相关参数的设置。 |
548e41f4b71Sopenharmony_ci
549e41f4b71Sopenharmony_ci**返回值:**
550e41f4b71Sopenharmony_ci
551e41f4b71Sopenharmony_ci| 类型             | 说明                             |
552e41f4b71Sopenharmony_ci| ---------------- | -------------------------------- |
553e41f4b71Sopenharmony_ci| Promise\<number> | 以Promise方式获取返回的音频流ID,有效值大于0。 |
554e41f4b71Sopenharmony_ci
555e41f4b71Sopenharmony_ci**错误码:**
556e41f4b71Sopenharmony_ci
557e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
558e41f4b71Sopenharmony_ci
559e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
560e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
561e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by promise. |
562e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by promise. |
563e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by promise.       |
564e41f4b71Sopenharmony_ci
565e41f4b71Sopenharmony_ci**示例:**
566e41f4b71Sopenharmony_ci
567e41f4b71Sopenharmony_ci```js
568e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
569e41f4b71Sopenharmony_ci
570e41f4b71Sopenharmony_ci//创建soundPool实例
571e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
572e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
573e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
574e41f4b71Sopenharmony_ci  rendererFlags: 1
575e41f4b71Sopenharmony_ci}
576e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
577e41f4b71Sopenharmony_ci  if (error) {
578e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
579e41f4b71Sopenharmony_ci    return;
580e41f4b71Sopenharmony_ci  } else {
581e41f4b71Sopenharmony_ci    soundPool = soundPool_;
582e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
583e41f4b71Sopenharmony_ci    let soundID: number = 0;
584e41f4b71Sopenharmony_ci    let streamID: number = 0;
585e41f4b71Sopenharmony_ci    let playParameters: media.PlayParameters = {
586e41f4b71Sopenharmony_ci      loop: 3, // 循环4次
587e41f4b71Sopenharmony_ci      rate: audio.AudioRendererRate.RENDER_RATE_NORMAL, // 正常倍速
588e41f4b71Sopenharmony_ci      leftVolume: 0.5, // range = 0.0-1.0
589e41f4b71Sopenharmony_ci      rightVolume: 0.5, // range = 0.0-1.0
590e41f4b71Sopenharmony_ci      priority: 0, // 最低优先级
591e41f4b71Sopenharmony_ci    }
592e41f4b71Sopenharmony_ci
593e41f4b71Sopenharmony_ci    soundPool.play(soundID, playParameters).then((streamId: number) => {
594e41f4b71Sopenharmony_ci      console.info('Succeeded in playing soundpool');
595e41f4b71Sopenharmony_ci      streamID = streamId;
596e41f4b71Sopenharmony_ci    },(err: BusinessError) => {
597e41f4b71Sopenharmony_ci      console.error('Failed to play soundpool and catch error is ' + err.message);
598e41f4b71Sopenharmony_ci    });
599e41f4b71Sopenharmony_ci  }
600e41f4b71Sopenharmony_ci});
601e41f4b71Sopenharmony_ci
602e41f4b71Sopenharmony_ci```
603e41f4b71Sopenharmony_ci
604e41f4b71Sopenharmony_ci### stop
605e41f4b71Sopenharmony_ci
606e41f4b71Sopenharmony_cistop(streamID: number, callback: AsyncCallback\<void>): void
607e41f4b71Sopenharmony_ci
608e41f4b71Sopenharmony_ci停止播放音频资源。使用callback方式异步获取返回值。
609e41f4b71Sopenharmony_ci
610e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
611e41f4b71Sopenharmony_ci
612e41f4b71Sopenharmony_ci**参数:**
613e41f4b71Sopenharmony_ci
614e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
615e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
616e41f4b71Sopenharmony_ci| streamID | number | 是   | 音频流ID,通过play方法获取。 |
617e41f4b71Sopenharmony_ci| callback | AsyncCallback\<void> | 是   | 异步音频池stop的回调方法。 |
618e41f4b71Sopenharmony_ci
619e41f4b71Sopenharmony_ci**错误码:**
620e41f4b71Sopenharmony_ci
621e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
622e41f4b71Sopenharmony_ci
623e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
624e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
625e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by callback. |
626e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by callback. |
627e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by callback.       |
628e41f4b71Sopenharmony_ci
629e41f4b71Sopenharmony_ci**示例:**
630e41f4b71Sopenharmony_ci
631e41f4b71Sopenharmony_ci```js
632e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
633e41f4b71Sopenharmony_ci
634e41f4b71Sopenharmony_ci//创建soundPool实例
635e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
636e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
637e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
638e41f4b71Sopenharmony_ci  rendererFlags: 1
639e41f4b71Sopenharmony_ci}
640e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
641e41f4b71Sopenharmony_ci  if (error) {
642e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
643e41f4b71Sopenharmony_ci    return;
644e41f4b71Sopenharmony_ci  } else {
645e41f4b71Sopenharmony_ci    soundPool = soundPool_;
646e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
647e41f4b71Sopenharmony_ci    let streamID: number = 0;
648e41f4b71Sopenharmony_ci    //先调用play方法给拿到对应的streamID
649e41f4b71Sopenharmony_ci    soundPool.stop(streamID, (error: BusinessError) => {
650e41f4b71Sopenharmony_ci      if (error) {
651e41f4b71Sopenharmony_ci        console.error(`Failed to stop soundpool: errCode is ${error.code}, errMessage is ${error.message}`)
652e41f4b71Sopenharmony_ci      } else {
653e41f4b71Sopenharmony_ci        console.info('Succeeded in stopping soundpool');
654e41f4b71Sopenharmony_ci      }
655e41f4b71Sopenharmony_ci    })
656e41f4b71Sopenharmony_ci  }
657e41f4b71Sopenharmony_ci});
658e41f4b71Sopenharmony_ci
659e41f4b71Sopenharmony_ci```
660e41f4b71Sopenharmony_ci
661e41f4b71Sopenharmony_ci### stop
662e41f4b71Sopenharmony_ci
663e41f4b71Sopenharmony_cistop(streamID: number): Promise\<void>
664e41f4b71Sopenharmony_ci
665e41f4b71Sopenharmony_ci停止streamID对应的音频播放。使用Promise方式异步获取返回值。
666e41f4b71Sopenharmony_ci
667e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
668e41f4b71Sopenharmony_ci
669e41f4b71Sopenharmony_ci**参数:**
670e41f4b71Sopenharmony_ci
671e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
672e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
673e41f4b71Sopenharmony_ci| streamID | number | 是   | 音频流ID,通过play方法获取。 |
674e41f4b71Sopenharmony_ci
675e41f4b71Sopenharmony_ci**返回值:**
676e41f4b71Sopenharmony_ci
677e41f4b71Sopenharmony_ci| 类型             | 说明                             |
678e41f4b71Sopenharmony_ci| ---------------- | -------------------------------- |
679e41f4b71Sopenharmony_ci| Promise\<void> | 以Promise方式返回,无返回值。 |
680e41f4b71Sopenharmony_ci
681e41f4b71Sopenharmony_ci**错误码:**
682e41f4b71Sopenharmony_ci
683e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
684e41f4b71Sopenharmony_ci
685e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
686e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
687e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by promise. |
688e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by promise. |
689e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by promise.       |
690e41f4b71Sopenharmony_ci
691e41f4b71Sopenharmony_ci**示例:**
692e41f4b71Sopenharmony_ci
693e41f4b71Sopenharmony_ci```js
694e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
695e41f4b71Sopenharmony_ci
696e41f4b71Sopenharmony_ci//创建soundPool实例
697e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
698e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
699e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
700e41f4b71Sopenharmony_ci  rendererFlags: 1
701e41f4b71Sopenharmony_ci}
702e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
703e41f4b71Sopenharmony_ci  if (error) {
704e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
705e41f4b71Sopenharmony_ci    return;
706e41f4b71Sopenharmony_ci  } else {
707e41f4b71Sopenharmony_ci    soundPool = soundPool_;
708e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
709e41f4b71Sopenharmony_ci    let streamID: number = 0;
710e41f4b71Sopenharmony_ci    //先调用play方法给拿到对应的streamID
711e41f4b71Sopenharmony_ci    soundPool.stop(streamID).then(() => {
712e41f4b71Sopenharmony_ci      console.info('Succeeded in stopping soundpool');
713e41f4b71Sopenharmony_ci    }, (err: BusinessError) => {
714e41f4b71Sopenharmony_ci      console.error('Failed to stop soundpool and catch error is ' + err.message);
715e41f4b71Sopenharmony_ci    });
716e41f4b71Sopenharmony_ci  }
717e41f4b71Sopenharmony_ci});
718e41f4b71Sopenharmony_ci```
719e41f4b71Sopenharmony_ci
720e41f4b71Sopenharmony_ci### setLoop
721e41f4b71Sopenharmony_ci
722e41f4b71Sopenharmony_cisetLoop(streamID: number, loop: number, callback: AsyncCallback\<void>): void;
723e41f4b71Sopenharmony_ci
724e41f4b71Sopenharmony_ci设置循环模式。使用callback方式异步获取返回值。
725e41f4b71Sopenharmony_ci
726e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
727e41f4b71Sopenharmony_ci
728e41f4b71Sopenharmony_ci**参数:**
729e41f4b71Sopenharmony_ci
730e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
731e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
732e41f4b71Sopenharmony_ci| streamID | number | 是   | 音频流ID,通过play方法获取。 |
733e41f4b71Sopenharmony_ci| loop | number | 是   | 设置循环的次数,0为默认1次,-1为一直循环。 |
734e41f4b71Sopenharmony_ci| callback | AsyncCallback\<void> | 是   | 异步setLoop的回调方法。 |
735e41f4b71Sopenharmony_ci
736e41f4b71Sopenharmony_ci**错误码:**
737e41f4b71Sopenharmony_ci
738e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
739e41f4b71Sopenharmony_ci
740e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
741e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
742e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by callback. |
743e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by callback. |
744e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by callback.       |
745e41f4b71Sopenharmony_ci
746e41f4b71Sopenharmony_ci**示例:**
747e41f4b71Sopenharmony_ci
748e41f4b71Sopenharmony_ci```js
749e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
750e41f4b71Sopenharmony_ci
751e41f4b71Sopenharmony_ci//创建soundPool实例
752e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
753e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
754e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
755e41f4b71Sopenharmony_ci  rendererFlags: 1
756e41f4b71Sopenharmony_ci}
757e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
758e41f4b71Sopenharmony_ci  if (error) {
759e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
760e41f4b71Sopenharmony_ci    return;
761e41f4b71Sopenharmony_ci  } else {
762e41f4b71Sopenharmony_ci    soundPool = soundPool_;
763e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
764e41f4b71Sopenharmony_ci    let streamID: number = 0;
765e41f4b71Sopenharmony_ci    //先通过调用play方法获取到对应的streamID
766e41f4b71Sopenharmony_ci    //设置循环2次
767e41f4b71Sopenharmony_ci    soundPool.setLoop(streamID, 2, (error: BusinessError) => {
768e41f4b71Sopenharmony_ci      if (error) {
769e41f4b71Sopenharmony_ci        console.error(`Failed to setLoop soundPool: errCode is ${error.code}, errMessage is ${error.message}`)
770e41f4b71Sopenharmony_ci      } else {
771e41f4b71Sopenharmony_ci        console.info('Succeeded in setLoopping soundpool, streamID:' + streamID);
772e41f4b71Sopenharmony_ci      }
773e41f4b71Sopenharmony_ci    });
774e41f4b71Sopenharmony_ci  }
775e41f4b71Sopenharmony_ci});
776e41f4b71Sopenharmony_ci
777e41f4b71Sopenharmony_ci```
778e41f4b71Sopenharmony_ci
779e41f4b71Sopenharmony_ci### setLoop
780e41f4b71Sopenharmony_ci
781e41f4b71Sopenharmony_cisetLoop(streamID: number, loop: number): Promise\<void>
782e41f4b71Sopenharmony_ci
783e41f4b71Sopenharmony_ci设置循环模式。使用Promise方式异步获取返回值。
784e41f4b71Sopenharmony_ci
785e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
786e41f4b71Sopenharmony_ci
787e41f4b71Sopenharmony_ci**参数:**
788e41f4b71Sopenharmony_ci
789e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
790e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
791e41f4b71Sopenharmony_ci| streamID | number | 是   | 音频流ID,通过play方法获取。 |
792e41f4b71Sopenharmony_ci| loop | number | 是   | 设置循环的次数,0为默认1次,-1为一直循环。|
793e41f4b71Sopenharmony_ci
794e41f4b71Sopenharmony_ci**返回值:**
795e41f4b71Sopenharmony_ci
796e41f4b71Sopenharmony_ci| 类型             | 说明                             |
797e41f4b71Sopenharmony_ci| ---------------- | -------------------------------- |
798e41f4b71Sopenharmony_ci| Promise\<void> | 异步音频池setLoop方法的Promise返回值。 |
799e41f4b71Sopenharmony_ci
800e41f4b71Sopenharmony_ci**错误码:**
801e41f4b71Sopenharmony_ci
802e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
803e41f4b71Sopenharmony_ci
804e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
805e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
806e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by promise. |
807e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by promise. |
808e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by promise.       |
809e41f4b71Sopenharmony_ci
810e41f4b71Sopenharmony_ci**示例:**
811e41f4b71Sopenharmony_ci
812e41f4b71Sopenharmony_ci```js
813e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
814e41f4b71Sopenharmony_ci
815e41f4b71Sopenharmony_ci//创建soundPool实例
816e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
817e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
818e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
819e41f4b71Sopenharmony_ci  rendererFlags: 1
820e41f4b71Sopenharmony_ci}
821e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
822e41f4b71Sopenharmony_ci  if (error) {
823e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
824e41f4b71Sopenharmony_ci    return;
825e41f4b71Sopenharmony_ci  } else {
826e41f4b71Sopenharmony_ci    soundPool = soundPool_;
827e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
828e41f4b71Sopenharmony_ci    let streamID: number = 0;
829e41f4b71Sopenharmony_ci    //先通过调用play方法获取到对应的streamID
830e41f4b71Sopenharmony_ci    //设置循环1次
831e41f4b71Sopenharmony_ci    soundPool.setLoop(streamID, 1).then(() => {
832e41f4b71Sopenharmony_ci      console.info('Succeeded in setLoopping soundpool, streamID:' + streamID);
833e41f4b71Sopenharmony_ci    }).catch((err: BusinessError) => {
834e41f4b71Sopenharmony_ci      console.error('Failed to setLoop soundPool and catch error is ' + err.message);
835e41f4b71Sopenharmony_ci    });
836e41f4b71Sopenharmony_ci  }
837e41f4b71Sopenharmony_ci});
838e41f4b71Sopenharmony_ci
839e41f4b71Sopenharmony_ci```
840e41f4b71Sopenharmony_ci
841e41f4b71Sopenharmony_ci### setPriority
842e41f4b71Sopenharmony_ci
843e41f4b71Sopenharmony_cisetPriority(streamID: number, priority: number, callback: AsyncCallback\<void>): void
844e41f4b71Sopenharmony_ci
845e41f4b71Sopenharmony_ci设置音频流播放的优先级。使用callback方式异步获取返回值。
846e41f4b71Sopenharmony_ci
847e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
848e41f4b71Sopenharmony_ci
849e41f4b71Sopenharmony_ci**参数:**
850e41f4b71Sopenharmony_ci
851e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
852e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
853e41f4b71Sopenharmony_ci| streamID | number | 是   | 音频流ID,通过play方法获取。 |
854e41f4b71Sopenharmony_ci| priority | number | 是   | 优先级,0表示最低优先级。 |
855e41f4b71Sopenharmony_ci| callback | AsyncCallback\<void> | 是   | 异步音频池setPriority方法的回调方法。 |
856e41f4b71Sopenharmony_ci
857e41f4b71Sopenharmony_ci**错误码:**
858e41f4b71Sopenharmony_ci
859e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
860e41f4b71Sopenharmony_ci
861e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
862e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
863e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by callback. |
864e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by callback. |
865e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by callback.       |
866e41f4b71Sopenharmony_ci
867e41f4b71Sopenharmony_ci**示例:**
868e41f4b71Sopenharmony_ci
869e41f4b71Sopenharmony_ci```js
870e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
871e41f4b71Sopenharmony_ci
872e41f4b71Sopenharmony_ci//创建soundPool实例
873e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
874e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
875e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
876e41f4b71Sopenharmony_ci  rendererFlags: 1
877e41f4b71Sopenharmony_ci}
878e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
879e41f4b71Sopenharmony_ci  if (error) {
880e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
881e41f4b71Sopenharmony_ci    return;
882e41f4b71Sopenharmony_ci  } else {
883e41f4b71Sopenharmony_ci    soundPool = soundPool_;
884e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
885e41f4b71Sopenharmony_ci    let streamID: number = 0;
886e41f4b71Sopenharmony_ci    // 先调用play方法获取到对应资源的streamID
887e41f4b71Sopenharmony_ci    // 给对应的streamID资源设置优先级为1
888e41f4b71Sopenharmony_ci    soundPool.setPriority(streamID, 1, (error: BusinessError) => {
889e41f4b71Sopenharmony_ci      if (error) {
890e41f4b71Sopenharmony_ci        console.error(`Failed to setPriority soundPool: errCode is ${error.code}, errMessage is ${error.message}`)
891e41f4b71Sopenharmony_ci      } else {
892e41f4b71Sopenharmony_ci        console.info('Succeeded in setPriority soundpool, streamID:' + streamID);
893e41f4b71Sopenharmony_ci      }
894e41f4b71Sopenharmony_ci    });
895e41f4b71Sopenharmony_ci  }
896e41f4b71Sopenharmony_ci});
897e41f4b71Sopenharmony_ci
898e41f4b71Sopenharmony_ci```
899e41f4b71Sopenharmony_ci
900e41f4b71Sopenharmony_ci### setPriority
901e41f4b71Sopenharmony_ci
902e41f4b71Sopenharmony_cisetPriority(streamID: number, priority: number): Promise\<void>
903e41f4b71Sopenharmony_ci
904e41f4b71Sopenharmony_ci设置音频流优先级。使用Promise方式异步获取返回值。
905e41f4b71Sopenharmony_ci
906e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
907e41f4b71Sopenharmony_ci
908e41f4b71Sopenharmony_ci**参数:**
909e41f4b71Sopenharmony_ci
910e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
911e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
912e41f4b71Sopenharmony_ci| streamID | number | 是   | 音频流ID,通过play方法获取。 |
913e41f4b71Sopenharmony_ci| priority | number | 是   | 优先级,0表示最低优先级。 |
914e41f4b71Sopenharmony_ci
915e41f4b71Sopenharmony_ci**返回值:**
916e41f4b71Sopenharmony_ci
917e41f4b71Sopenharmony_ci| 类型             | 说明                             |
918e41f4b71Sopenharmony_ci| ---------------- | -------------------------------- |
919e41f4b71Sopenharmony_ci| Promise\<void> | 异步音频池setPriority的Promise返回值。 |
920e41f4b71Sopenharmony_ci
921e41f4b71Sopenharmony_ci**错误码:**
922e41f4b71Sopenharmony_ci
923e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
924e41f4b71Sopenharmony_ci
925e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
926e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
927e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by promise. |
928e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by promise. |
929e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by promise.       |
930e41f4b71Sopenharmony_ci
931e41f4b71Sopenharmony_ci**示例:**
932e41f4b71Sopenharmony_ci
933e41f4b71Sopenharmony_ci```js
934e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
935e41f4b71Sopenharmony_ci
936e41f4b71Sopenharmony_ci//创建soundPool实例
937e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
938e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
939e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
940e41f4b71Sopenharmony_ci  rendererFlags: 1
941e41f4b71Sopenharmony_ci}
942e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
943e41f4b71Sopenharmony_ci  if (error) {
944e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
945e41f4b71Sopenharmony_ci    return;
946e41f4b71Sopenharmony_ci  } else {
947e41f4b71Sopenharmony_ci    soundPool = soundPool_;
948e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
949e41f4b71Sopenharmony_ci    let streamID: number = 0;
950e41f4b71Sopenharmony_ci    // 先调用play方法获取到对应资源的streamID
951e41f4b71Sopenharmony_ci    // 给对应的streamID资源设置优先级为1
952e41f4b71Sopenharmony_ci
953e41f4b71Sopenharmony_ci    soundPool.setPriority(streamID, 1).then(() => {
954e41f4b71Sopenharmony_ci      console.info('Succeeded in setPriority soundpool');
955e41f4b71Sopenharmony_ci    }, (err: BusinessError) => {
956e41f4b71Sopenharmony_ci      console.error('Failed to setPriority soundPool and catch error is ' + err.message);
957e41f4b71Sopenharmony_ci    });
958e41f4b71Sopenharmony_ci  }
959e41f4b71Sopenharmony_ci});
960e41f4b71Sopenharmony_ci
961e41f4b71Sopenharmony_ci```
962e41f4b71Sopenharmony_ci
963e41f4b71Sopenharmony_ci### setRate
964e41f4b71Sopenharmony_ci
965e41f4b71Sopenharmony_cisetRate(streamID: number, rate: audio.AudioRendererRate, callback: AsyncCallback\<void>): void
966e41f4b71Sopenharmony_ci
967e41f4b71Sopenharmony_ci设置音频流播放速率。使用callback方式异步获取返回值。
968e41f4b71Sopenharmony_ci
969e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
970e41f4b71Sopenharmony_ci
971e41f4b71Sopenharmony_ci**参数:**
972e41f4b71Sopenharmony_ci
973e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
974e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
975e41f4b71Sopenharmony_ci| streamID | number | 是   | 音频流ID,通过play方法获取。 |
976e41f4b71Sopenharmony_ci| rate | [audio.AudioRendererRate](../apis-audio-kit/js-apis-audio.md#audiorendererrate8) | 是   | 音频rate相关参数。 |
977e41f4b71Sopenharmony_ci| callback | AsyncCallback\<void> | 是   | 异步音频池setRate方法的回调方法。 |
978e41f4b71Sopenharmony_ci
979e41f4b71Sopenharmony_ci**错误码:**
980e41f4b71Sopenharmony_ci
981e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
982e41f4b71Sopenharmony_ci
983e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
984e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
985e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by callback. |
986e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by callback. |
987e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by callback.       |
988e41f4b71Sopenharmony_ci
989e41f4b71Sopenharmony_ci**示例:**
990e41f4b71Sopenharmony_ci
991e41f4b71Sopenharmony_ci```js
992e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
993e41f4b71Sopenharmony_ci
994e41f4b71Sopenharmony_ci//创建soundPool实例
995e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
996e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
997e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
998e41f4b71Sopenharmony_ci  rendererFlags: 1
999e41f4b71Sopenharmony_ci}
1000e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1001e41f4b71Sopenharmony_ci  if (error) {
1002e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1003e41f4b71Sopenharmony_ci    return;
1004e41f4b71Sopenharmony_ci  } else {
1005e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1006e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1007e41f4b71Sopenharmony_ci    let streamID: number = 0;
1008e41f4b71Sopenharmony_ci    let selectedAudioRendererRate: audio.AudioRendererRate = audio.AudioRendererRate.RENDER_RATE_NORMAL; // 默认正常速率
1009e41f4b71Sopenharmony_ci    // 先调用play方法获取到对应资源的streamID
1010e41f4b71Sopenharmony_ci    soundPool.setRate(streamID, selectedAudioRendererRate, (error: BusinessError) => {
1011e41f4b71Sopenharmony_ci      if (error) {
1012e41f4b71Sopenharmony_ci        console.error(`Failed to setRate soundPool: errCode is ${error.code}, errMessage is ${error.message}`)
1013e41f4b71Sopenharmony_ci      } else {
1014e41f4b71Sopenharmony_ci        console.info('Succeeded in setRate success, streamID:' + streamID);
1015e41f4b71Sopenharmony_ci      }
1016e41f4b71Sopenharmony_ci    })
1017e41f4b71Sopenharmony_ci  }
1018e41f4b71Sopenharmony_ci});
1019e41f4b71Sopenharmony_ci
1020e41f4b71Sopenharmony_ci```
1021e41f4b71Sopenharmony_ci
1022e41f4b71Sopenharmony_ci### setRate
1023e41f4b71Sopenharmony_ci
1024e41f4b71Sopenharmony_cisetRate(streamID: number, rate: audio.AudioRendererRate): Promise\<void>
1025e41f4b71Sopenharmony_ci
1026e41f4b71Sopenharmony_ci设置音频流的播放速率。使用Promise方式异步获取返回值。
1027e41f4b71Sopenharmony_ci
1028e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1029e41f4b71Sopenharmony_ci
1030e41f4b71Sopenharmony_ci**参数:**
1031e41f4b71Sopenharmony_ci
1032e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
1033e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
1034e41f4b71Sopenharmony_ci| streamID | number | 是   | 音频流ID,通过play方法获取。 |
1035e41f4b71Sopenharmony_ci| rate | [audio.AudioRendererRate](../apis-audio-kit/js-apis-audio.md#audiorendererrate8) | 是   | 音频rate相关参数。 |
1036e41f4b71Sopenharmony_ci
1037e41f4b71Sopenharmony_ci**返回值:**
1038e41f4b71Sopenharmony_ci
1039e41f4b71Sopenharmony_ci| 类型             | 说明                             |
1040e41f4b71Sopenharmony_ci| ---------------- | -------------------------------- |
1041e41f4b71Sopenharmony_ci| Promise\<void> | 异步音频池setRate方法的Promise返回值。 |
1042e41f4b71Sopenharmony_ci
1043e41f4b71Sopenharmony_ci**错误码:**
1044e41f4b71Sopenharmony_ci
1045e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
1046e41f4b71Sopenharmony_ci
1047e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
1048e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
1049e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by promise. |
1050e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by promise. |
1051e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by promise.       |
1052e41f4b71Sopenharmony_ci
1053e41f4b71Sopenharmony_ci**示例:**
1054e41f4b71Sopenharmony_ci
1055e41f4b71Sopenharmony_ci```js
1056e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1057e41f4b71Sopenharmony_ci
1058e41f4b71Sopenharmony_ci//创建soundPool实例
1059e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1060e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1061e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1062e41f4b71Sopenharmony_ci  rendererFlags: 1
1063e41f4b71Sopenharmony_ci}
1064e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1065e41f4b71Sopenharmony_ci  if (error) {
1066e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1067e41f4b71Sopenharmony_ci    return;
1068e41f4b71Sopenharmony_ci  } else {
1069e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1070e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1071e41f4b71Sopenharmony_ci    let streamID: number = 0;
1072e41f4b71Sopenharmony_ci    let selectedAudioRendererRate: audio.AudioRendererRate = audio.AudioRendererRate.RENDER_RATE_NORMAL; // 默认正常速率
1073e41f4b71Sopenharmony_ci    // 先调用play方法获取到对应资源的streamID
1074e41f4b71Sopenharmony_ci    soundPool.setRate(streamID, selectedAudioRendererRate).then(() => {
1075e41f4b71Sopenharmony_ci      console.info('Succeeded in setRate soundpool');
1076e41f4b71Sopenharmony_ci    }, (err: BusinessError) => {
1077e41f4b71Sopenharmony_ci      console.error('Failed to setRate soundpool and catch error is ' + err.message);
1078e41f4b71Sopenharmony_ci    });
1079e41f4b71Sopenharmony_ci  }
1080e41f4b71Sopenharmony_ci});
1081e41f4b71Sopenharmony_ci
1082e41f4b71Sopenharmony_ci```
1083e41f4b71Sopenharmony_ci
1084e41f4b71Sopenharmony_ci### setVolume
1085e41f4b71Sopenharmony_ci
1086e41f4b71Sopenharmony_cisetVolume(streamID: number, leftVolume: number, rightVolume: number, callback: AsyncCallback\<void>): void
1087e41f4b71Sopenharmony_ci
1088e41f4b71Sopenharmony_ci设置音频流播放音量。使用callback方式异步获取返回值。
1089e41f4b71Sopenharmony_ci
1090e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1091e41f4b71Sopenharmony_ci
1092e41f4b71Sopenharmony_ci**参数:**
1093e41f4b71Sopenharmony_ci
1094e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
1095e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
1096e41f4b71Sopenharmony_ci| streamID | number | 是   | 音频流ID,通过play方法获取。 |
1097e41f4b71Sopenharmony_ci| leftVolume | number | 是   | 左声道音量,设置范围为0.0-1.0之间。 |
1098e41f4b71Sopenharmony_ci| rightVolume | number | 是   | 右声道音量,当前右声道设置无效,以左声道为准。 |
1099e41f4b71Sopenharmony_ci| callback | AsyncCallback\<void> | 是   | 异步音频池setVolume方法的回调方法。 |
1100e41f4b71Sopenharmony_ci
1101e41f4b71Sopenharmony_ci**错误码:**
1102e41f4b71Sopenharmony_ci
1103e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
1104e41f4b71Sopenharmony_ci
1105e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
1106e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
1107e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by callback. |
1108e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by callback. |
1109e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by callback.       |
1110e41f4b71Sopenharmony_ci
1111e41f4b71Sopenharmony_ci**示例:**
1112e41f4b71Sopenharmony_ci
1113e41f4b71Sopenharmony_ci```js
1114e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1115e41f4b71Sopenharmony_ci
1116e41f4b71Sopenharmony_ci//创建soundPool实例
1117e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1118e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1119e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1120e41f4b71Sopenharmony_ci  rendererFlags: 1
1121e41f4b71Sopenharmony_ci}
1122e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1123e41f4b71Sopenharmony_ci  if (error) {
1124e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1125e41f4b71Sopenharmony_ci    return;
1126e41f4b71Sopenharmony_ci  } else {
1127e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1128e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1129e41f4b71Sopenharmony_ci    let streamID: number = 0;
1130e41f4b71Sopenharmony_ci    // 先调用play方法获取到对应资源的streamID
1131e41f4b71Sopenharmony_ci    //设置音量为0.5
1132e41f4b71Sopenharmony_ci    soundPool.setVolume(streamID, 0.5, 0.5, (error: BusinessError) => {
1133e41f4b71Sopenharmony_ci      if (error) {
1134e41f4b71Sopenharmony_ci        console.error(`Failed to setVolume soundPool: errCode is ${error.code}, errMessage is ${error.message}`)
1135e41f4b71Sopenharmony_ci      } else {
1136e41f4b71Sopenharmony_ci        console.info('Succeeded in setVolume soundpool, streamID:' + streamID);
1137e41f4b71Sopenharmony_ci      }
1138e41f4b71Sopenharmony_ci    })
1139e41f4b71Sopenharmony_ci  }
1140e41f4b71Sopenharmony_ci});
1141e41f4b71Sopenharmony_ci
1142e41f4b71Sopenharmony_ci```
1143e41f4b71Sopenharmony_ci
1144e41f4b71Sopenharmony_ci### setVolume
1145e41f4b71Sopenharmony_ci
1146e41f4b71Sopenharmony_cisetVolume(streamID: number, leftVolume: number, rightVolume: number): Promise\<void>
1147e41f4b71Sopenharmony_ci
1148e41f4b71Sopenharmony_ci设置音频流的播放音量。使用Promise方式异步获取返回值。
1149e41f4b71Sopenharmony_ci
1150e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1151e41f4b71Sopenharmony_ci
1152e41f4b71Sopenharmony_ci**参数:**
1153e41f4b71Sopenharmony_ci
1154e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
1155e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
1156e41f4b71Sopenharmony_ci| streamID | number | 是   | 音频流ID,通过play方法获取。 |
1157e41f4b71Sopenharmony_ci| leftVolume | number | 是   | 左声道音量,设置范围为0.0-1.0之间。 |
1158e41f4b71Sopenharmony_ci| rightVolume | number | 是   | 右声道音量,当前右声道设置无效,以左声道为准。 |
1159e41f4b71Sopenharmony_ci
1160e41f4b71Sopenharmony_ci**返回值:**
1161e41f4b71Sopenharmony_ci
1162e41f4b71Sopenharmony_ci| 类型             | 说明                             |
1163e41f4b71Sopenharmony_ci| ---------------- | -------------------------------- |
1164e41f4b71Sopenharmony_ci| Promise\<void> | 异步音频池setVolume方法的Promise返回值。 |
1165e41f4b71Sopenharmony_ci
1166e41f4b71Sopenharmony_ci**错误码:**
1167e41f4b71Sopenharmony_ci
1168e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
1169e41f4b71Sopenharmony_ci
1170e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
1171e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
1172e41f4b71Sopenharmony_ci| 401  | Parameter error. Possible causes: 1.Mandatory parameters are left unspecified. 2.Incorrect parameter types. 3.Parameter verification failed.  Return by promise. |
1173e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by promise. |
1174e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by promise.       |
1175e41f4b71Sopenharmony_ci
1176e41f4b71Sopenharmony_ci**示例:**
1177e41f4b71Sopenharmony_ci
1178e41f4b71Sopenharmony_ci```js
1179e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1180e41f4b71Sopenharmony_ci
1181e41f4b71Sopenharmony_ci//创建soundPool实例
1182e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1183e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1184e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1185e41f4b71Sopenharmony_ci  rendererFlags: 1
1186e41f4b71Sopenharmony_ci}
1187e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1188e41f4b71Sopenharmony_ci  if (error) {
1189e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1190e41f4b71Sopenharmony_ci    return;
1191e41f4b71Sopenharmony_ci  } else {
1192e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1193e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1194e41f4b71Sopenharmony_ci    let streamID: number = 0;
1195e41f4b71Sopenharmony_ci    // 先调用play方法获取到对应资源的streamID
1196e41f4b71Sopenharmony_ci
1197e41f4b71Sopenharmony_ci    soundPool.setVolume(streamID, 0.5, 0.5).then(() => {
1198e41f4b71Sopenharmony_ci      console.info('Succeeded in setVolume soundpool');
1199e41f4b71Sopenharmony_ci    }, (err: BusinessError) => {
1200e41f4b71Sopenharmony_ci      console.error('Failed to setVolume soundPool and catch error is ' + err.message);
1201e41f4b71Sopenharmony_ci    });
1202e41f4b71Sopenharmony_ci  }
1203e41f4b71Sopenharmony_ci});
1204e41f4b71Sopenharmony_ci
1205e41f4b71Sopenharmony_ci```
1206e41f4b71Sopenharmony_ci
1207e41f4b71Sopenharmony_ci### unload
1208e41f4b71Sopenharmony_ci
1209e41f4b71Sopenharmony_ciunload(soundID: number, callback: AsyncCallback\<void>): void
1210e41f4b71Sopenharmony_ci
1211e41f4b71Sopenharmony_ci卸载音频资源。使用callback方式异步获取返回值。
1212e41f4b71Sopenharmony_ci
1213e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1214e41f4b71Sopenharmony_ci
1215e41f4b71Sopenharmony_ci**参数:**
1216e41f4b71Sopenharmony_ci
1217e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
1218e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
1219e41f4b71Sopenharmony_ci| soundID | number | 是   | 资源ID,通过load方法获取。 |
1220e41f4b71Sopenharmony_ci| callback | AsyncCallback\<void> | 是   | 异步音频池unload方法的回调方法。 |
1221e41f4b71Sopenharmony_ci
1222e41f4b71Sopenharmony_ci**错误码:**
1223e41f4b71Sopenharmony_ci
1224e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
1225e41f4b71Sopenharmony_ci
1226e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
1227e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
1228e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by callback. |
1229e41f4b71Sopenharmony_ci| 5400103  | I/O error. Return by callback. |
1230e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by callback.       |
1231e41f4b71Sopenharmony_ci
1232e41f4b71Sopenharmony_ci**示例:**
1233e41f4b71Sopenharmony_ci
1234e41f4b71Sopenharmony_ci```js
1235e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1236e41f4b71Sopenharmony_ci
1237e41f4b71Sopenharmony_ci//创建soundPool实例
1238e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1239e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1240e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1241e41f4b71Sopenharmony_ci  rendererFlags: 1
1242e41f4b71Sopenharmony_ci}
1243e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1244e41f4b71Sopenharmony_ci  if (error) {
1245e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1246e41f4b71Sopenharmony_ci    return;
1247e41f4b71Sopenharmony_ci  } else {
1248e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1249e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1250e41f4b71Sopenharmony_ci    let soundID: number = 0;
1251e41f4b71Sopenharmony_ci    // 先调用load方法获取到对应资源的soundID
1252e41f4b71Sopenharmony_ci    soundPool.unload(soundID, (error: BusinessError) => {
1253e41f4b71Sopenharmony_ci      if (error) {
1254e41f4b71Sopenharmony_ci        console.error(`Failed to unload soundPool: errCode is ${error.code}, errMessage is ${error.message}`)
1255e41f4b71Sopenharmony_ci      } else {
1256e41f4b71Sopenharmony_ci        console.info('Succceeded in unload soundPool');
1257e41f4b71Sopenharmony_ci      }
1258e41f4b71Sopenharmony_ci    })
1259e41f4b71Sopenharmony_ci  }
1260e41f4b71Sopenharmony_ci});
1261e41f4b71Sopenharmony_ci
1262e41f4b71Sopenharmony_ci```
1263e41f4b71Sopenharmony_ci
1264e41f4b71Sopenharmony_ci### unload
1265e41f4b71Sopenharmony_ci
1266e41f4b71Sopenharmony_ciunload(soundID: number): Promise\<void>
1267e41f4b71Sopenharmony_ci
1268e41f4b71Sopenharmony_ci卸载音频资源。使用Promise方式异步获取返回值。
1269e41f4b71Sopenharmony_ci
1270e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1271e41f4b71Sopenharmony_ci
1272e41f4b71Sopenharmony_ci**参数:**
1273e41f4b71Sopenharmony_ci
1274e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
1275e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
1276e41f4b71Sopenharmony_ci| soundID | number | 是   | 资源ID,通过load方法获取。 |
1277e41f4b71Sopenharmony_ci
1278e41f4b71Sopenharmony_ci**返回值:**
1279e41f4b71Sopenharmony_ci
1280e41f4b71Sopenharmony_ci| 类型             | 说明                             |
1281e41f4b71Sopenharmony_ci| ---------------- | -------------------------------- |
1282e41f4b71Sopenharmony_ci| Promise\<void> | 异步音频池unload方法的Promise返回值。 |
1283e41f4b71Sopenharmony_ci
1284e41f4b71Sopenharmony_ci**错误码:**
1285e41f4b71Sopenharmony_ci
1286e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
1287e41f4b71Sopenharmony_ci
1288e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
1289e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
1290e41f4b71Sopenharmony_ci| 5400102  | Operation not allowed. Return by promise. |
1291e41f4b71Sopenharmony_ci| 5400103  | I/O error. Return by promise. |
1292e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by promise.       |
1293e41f4b71Sopenharmony_ci
1294e41f4b71Sopenharmony_ci**示例:**
1295e41f4b71Sopenharmony_ci
1296e41f4b71Sopenharmony_ci```js
1297e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1298e41f4b71Sopenharmony_ci
1299e41f4b71Sopenharmony_ci//创建soundPool实例
1300e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1301e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1302e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1303e41f4b71Sopenharmony_ci  rendererFlags: 1
1304e41f4b71Sopenharmony_ci}
1305e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1306e41f4b71Sopenharmony_ci  if (error) {
1307e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1308e41f4b71Sopenharmony_ci    return;
1309e41f4b71Sopenharmony_ci  } else {
1310e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1311e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1312e41f4b71Sopenharmony_ci    let soundID: number = 0;
1313e41f4b71Sopenharmony_ci    // 先调用load方法获取到对应资源的soundID
1314e41f4b71Sopenharmony_ci
1315e41f4b71Sopenharmony_ci    soundPool.unload(soundID).then(() => {
1316e41f4b71Sopenharmony_ci      console.info('Succceeded in unload soundPool');
1317e41f4b71Sopenharmony_ci    }, (err: BusinessError) => {
1318e41f4b71Sopenharmony_ci      console.error('Failed to unload soundPool and catch error is ' + err.message);
1319e41f4b71Sopenharmony_ci    });
1320e41f4b71Sopenharmony_ci  }
1321e41f4b71Sopenharmony_ci});
1322e41f4b71Sopenharmony_ci
1323e41f4b71Sopenharmony_ci```
1324e41f4b71Sopenharmony_ci
1325e41f4b71Sopenharmony_ci### release
1326e41f4b71Sopenharmony_ci
1327e41f4b71Sopenharmony_cirelease(callback: AsyncCallback\<void>): void
1328e41f4b71Sopenharmony_ci
1329e41f4b71Sopenharmony_ci释放音频池实例。使用callback方式异步获取返回值。
1330e41f4b71Sopenharmony_ci
1331e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1332e41f4b71Sopenharmony_ci
1333e41f4b71Sopenharmony_ci**参数:**
1334e41f4b71Sopenharmony_ci
1335e41f4b71Sopenharmony_ci| 参数名   | 类型                   | 必填 | 说明                        |
1336e41f4b71Sopenharmony_ci| -------- | ---------------------- | ---- | --------------------------- |
1337e41f4b71Sopenharmony_ci| callback | AsyncCallback\<void> | 是   | 异步音频池release方法的回调方法。 |
1338e41f4b71Sopenharmony_ci
1339e41f4b71Sopenharmony_ci**错误码:**
1340e41f4b71Sopenharmony_ci
1341e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
1342e41f4b71Sopenharmony_ci
1343e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
1344e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
1345e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by callback.       |
1346e41f4b71Sopenharmony_ci
1347e41f4b71Sopenharmony_ci**示例:**
1348e41f4b71Sopenharmony_ci
1349e41f4b71Sopenharmony_ci```js
1350e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1351e41f4b71Sopenharmony_ci
1352e41f4b71Sopenharmony_ci//创建soundPool实例
1353e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1354e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1355e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1356e41f4b71Sopenharmony_ci  rendererFlags: 1
1357e41f4b71Sopenharmony_ci}
1358e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1359e41f4b71Sopenharmony_ci  if (error) {
1360e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1361e41f4b71Sopenharmony_ci    return;
1362e41f4b71Sopenharmony_ci  } else {
1363e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1364e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1365e41f4b71Sopenharmony_ci    soundPool.release((error: BusinessError) => {
1366e41f4b71Sopenharmony_ci      if (error) {
1367e41f4b71Sopenharmony_ci        console.error(`Failed to release soundPool: errCode is ${error.code}, errMessage is ${error.message}`)
1368e41f4b71Sopenharmony_ci      } else {
1369e41f4b71Sopenharmony_ci        console.info('Succeeded in releasing soundPool');
1370e41f4b71Sopenharmony_ci      }
1371e41f4b71Sopenharmony_ci    })
1372e41f4b71Sopenharmony_ci  }
1373e41f4b71Sopenharmony_ci});
1374e41f4b71Sopenharmony_ci
1375e41f4b71Sopenharmony_ci
1376e41f4b71Sopenharmony_ci```
1377e41f4b71Sopenharmony_ci
1378e41f4b71Sopenharmony_ci### release
1379e41f4b71Sopenharmony_ci
1380e41f4b71Sopenharmony_cirelease(): Promise\<void>
1381e41f4b71Sopenharmony_ci
1382e41f4b71Sopenharmony_ci释放音频池实例。使用Promise方式异步获取返回值。
1383e41f4b71Sopenharmony_ci
1384e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1385e41f4b71Sopenharmony_ci
1386e41f4b71Sopenharmony_ci**返回值:**
1387e41f4b71Sopenharmony_ci
1388e41f4b71Sopenharmony_ci| 类型             | 说明                             |
1389e41f4b71Sopenharmony_ci| ---------------- | -------------------------------- |
1390e41f4b71Sopenharmony_ci| Promise\<void> | 异步音频池release方法的Promise返回值。 |
1391e41f4b71Sopenharmony_ci
1392e41f4b71Sopenharmony_ci**错误码:**
1393e41f4b71Sopenharmony_ci
1394e41f4b71Sopenharmony_ci以下错误码的详细介绍请参见[媒体错误码](errorcode-media.md)。
1395e41f4b71Sopenharmony_ci
1396e41f4b71Sopenharmony_ci| 错误码ID | 错误信息                                |
1397e41f4b71Sopenharmony_ci| -------- | --------------------------------------- |
1398e41f4b71Sopenharmony_ci| 5400105  | Service died. Return by promise.       |
1399e41f4b71Sopenharmony_ci
1400e41f4b71Sopenharmony_ci**示例:**
1401e41f4b71Sopenharmony_ci
1402e41f4b71Sopenharmony_ci```js
1403e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1404e41f4b71Sopenharmony_ci
1405e41f4b71Sopenharmony_ci//创建soundPool实例
1406e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1407e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1408e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1409e41f4b71Sopenharmony_ci  rendererFlags: 1
1410e41f4b71Sopenharmony_ci}
1411e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1412e41f4b71Sopenharmony_ci  if (error) {
1413e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1414e41f4b71Sopenharmony_ci    return;
1415e41f4b71Sopenharmony_ci  } else {
1416e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1417e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1418e41f4b71Sopenharmony_ci    soundPool.release().then(() => {
1419e41f4b71Sopenharmony_ci      console.info('Succeeded in releasing soundPool');
1420e41f4b71Sopenharmony_ci    }, (err: BusinessError) => {
1421e41f4b71Sopenharmony_ci      console.error('Failed to release soundPool and catch error is ' + err.message);
1422e41f4b71Sopenharmony_ci    });
1423e41f4b71Sopenharmony_ci  }
1424e41f4b71Sopenharmony_ci});
1425e41f4b71Sopenharmony_ci
1426e41f4b71Sopenharmony_ci```
1427e41f4b71Sopenharmony_ci
1428e41f4b71Sopenharmony_ci### on('loadComplete')
1429e41f4b71Sopenharmony_ci
1430e41f4b71Sopenharmony_cion(type: 'loadComplete', callback: Callback\<number>): void
1431e41f4b71Sopenharmony_ci
1432e41f4b71Sopenharmony_ci音频池资源加载完成监听。
1433e41f4b71Sopenharmony_ci
1434e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1435e41f4b71Sopenharmony_ci
1436e41f4b71Sopenharmony_ci**参数:**
1437e41f4b71Sopenharmony_ci
1438e41f4b71Sopenharmony_ci| 参数名   | 类型     | 必填 | 说明                                                         |
1439e41f4b71Sopenharmony_ci| -------- | -------- | ---- | ------------------------------------------------------------ |
1440e41f4b71Sopenharmony_ci| type     | string   | 是   | 支持的事件:'loadComplete',对应的ID加载完成会触发此回调。 |
1441e41f4b71Sopenharmony_ci| callback | Callback\<number> | 是   | 对应资源加载完成的资源ID。                               |
1442e41f4b71Sopenharmony_ci
1443e41f4b71Sopenharmony_ci**示例:**
1444e41f4b71Sopenharmony_ci
1445e41f4b71Sopenharmony_ci```js
1446e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1447e41f4b71Sopenharmony_ci
1448e41f4b71Sopenharmony_ci//创建soundPool实例
1449e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1450e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1451e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1452e41f4b71Sopenharmony_ci  rendererFlags: 1
1453e41f4b71Sopenharmony_ci}
1454e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1455e41f4b71Sopenharmony_ci  if (error) {
1456e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1457e41f4b71Sopenharmony_ci    return;
1458e41f4b71Sopenharmony_ci  } else {
1459e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1460e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1461e41f4b71Sopenharmony_ci    soundPool.on('loadComplete', (soundId: number) => {
1462e41f4b71Sopenharmony_ci      console.info('Succeeded in loadComplete, soundId:' + soundId)
1463e41f4b71Sopenharmony_ci    })
1464e41f4b71Sopenharmony_ci  }
1465e41f4b71Sopenharmony_ci});
1466e41f4b71Sopenharmony_ci
1467e41f4b71Sopenharmony_ci```
1468e41f4b71Sopenharmony_ci
1469e41f4b71Sopenharmony_ci### off('loadComplete')
1470e41f4b71Sopenharmony_ci
1471e41f4b71Sopenharmony_cioff(type: 'loadComplete'): void
1472e41f4b71Sopenharmony_ci
1473e41f4b71Sopenharmony_ci取消监听资源的加载完成。
1474e41f4b71Sopenharmony_ci
1475e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1476e41f4b71Sopenharmony_ci
1477e41f4b71Sopenharmony_ci**参数:**
1478e41f4b71Sopenharmony_ci
1479e41f4b71Sopenharmony_ci| 参数名 | 类型   | 必填 | 说明                                                         |
1480e41f4b71Sopenharmony_ci| ------ | ------ | ---- | ------------------------------------------------------------ |
1481e41f4b71Sopenharmony_ci| type   | string | 是   | 取消注册的事件:'loadComplete'。 |
1482e41f4b71Sopenharmony_ci
1483e41f4b71Sopenharmony_ci**示例:**
1484e41f4b71Sopenharmony_ci
1485e41f4b71Sopenharmony_ci```js
1486e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1487e41f4b71Sopenharmony_ci
1488e41f4b71Sopenharmony_ci//创建soundPool实例
1489e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1490e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1491e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1492e41f4b71Sopenharmony_ci  rendererFlags: 1
1493e41f4b71Sopenharmony_ci}
1494e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1495e41f4b71Sopenharmony_ci  if (error) {
1496e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1497e41f4b71Sopenharmony_ci    return;
1498e41f4b71Sopenharmony_ci  } else {
1499e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1500e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1501e41f4b71Sopenharmony_ci    soundPool.off('loadComplete')
1502e41f4b71Sopenharmony_ci  }
1503e41f4b71Sopenharmony_ci});
1504e41f4b71Sopenharmony_ci
1505e41f4b71Sopenharmony_ci```
1506e41f4b71Sopenharmony_ci
1507e41f4b71Sopenharmony_ci### on('playFinished')
1508e41f4b71Sopenharmony_ci
1509e41f4b71Sopenharmony_cion(type: 'playFinished', callback: Callback\<void>): void
1510e41f4b71Sopenharmony_ci
1511e41f4b71Sopenharmony_ci音频池资源播放完成监听。
1512e41f4b71Sopenharmony_ci
1513e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1514e41f4b71Sopenharmony_ci
1515e41f4b71Sopenharmony_ci**参数:**
1516e41f4b71Sopenharmony_ci
1517e41f4b71Sopenharmony_ci| 参数名   | 类型     | 必填 | 说明                                                         |
1518e41f4b71Sopenharmony_ci| -------- | -------- | ---- | ------------------------------------------------------------ |
1519e41f4b71Sopenharmony_ci| type     | string   | 是   | 支持的事件:'playFinished',音频流播放完成会触发此回调。 |
1520e41f4b71Sopenharmony_ci| callback | Callback\<void> | 是   |  异步'playFinished'的回调方法。        |
1521e41f4b71Sopenharmony_ci
1522e41f4b71Sopenharmony_ci**示例:**
1523e41f4b71Sopenharmony_ci
1524e41f4b71Sopenharmony_ci```js
1525e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1526e41f4b71Sopenharmony_ci
1527e41f4b71Sopenharmony_ci//创建soundPool实例
1528e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1529e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1530e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1531e41f4b71Sopenharmony_ci  rendererFlags: 1
1532e41f4b71Sopenharmony_ci}
1533e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1534e41f4b71Sopenharmony_ci  if (error) {
1535e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1536e41f4b71Sopenharmony_ci    return;
1537e41f4b71Sopenharmony_ci  } else {
1538e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1539e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1540e41f4b71Sopenharmony_ci    soundPool.on('playFinished', () => {
1541e41f4b71Sopenharmony_ci      console.info('Succeeded in playFinished')
1542e41f4b71Sopenharmony_ci    });
1543e41f4b71Sopenharmony_ci  }
1544e41f4b71Sopenharmony_ci});
1545e41f4b71Sopenharmony_ci
1546e41f4b71Sopenharmony_ci```
1547e41f4b71Sopenharmony_ci
1548e41f4b71Sopenharmony_ci### off('playFinished')
1549e41f4b71Sopenharmony_ci
1550e41f4b71Sopenharmony_cioff(type: 'playFinished'): void
1551e41f4b71Sopenharmony_ci
1552e41f4b71Sopenharmony_ci取消监听音频池资源播放完成。
1553e41f4b71Sopenharmony_ci
1554e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1555e41f4b71Sopenharmony_ci
1556e41f4b71Sopenharmony_ci**参数:**
1557e41f4b71Sopenharmony_ci
1558e41f4b71Sopenharmony_ci| 参数名 | 类型   | 必填 | 说明                                                         |
1559e41f4b71Sopenharmony_ci| ------ | ------ | ---- | ------------------------------------------------------------ |
1560e41f4b71Sopenharmony_ci| type   | string | 是   | 取消注册的事件:'playFinished'。 |
1561e41f4b71Sopenharmony_ci
1562e41f4b71Sopenharmony_ci**示例:**
1563e41f4b71Sopenharmony_ci
1564e41f4b71Sopenharmony_ci```js
1565e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1566e41f4b71Sopenharmony_ci
1567e41f4b71Sopenharmony_ci//创建soundPool实例
1568e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1569e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1570e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1571e41f4b71Sopenharmony_ci  rendererFlags: 1
1572e41f4b71Sopenharmony_ci}
1573e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1574e41f4b71Sopenharmony_ci  if (error) {
1575e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1576e41f4b71Sopenharmony_ci    return;
1577e41f4b71Sopenharmony_ci  } else {
1578e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1579e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1580e41f4b71Sopenharmony_ci    soundPool.off('playFinished')
1581e41f4b71Sopenharmony_ci  }
1582e41f4b71Sopenharmony_ci});
1583e41f4b71Sopenharmony_ci
1584e41f4b71Sopenharmony_ci```
1585e41f4b71Sopenharmony_ci
1586e41f4b71Sopenharmony_ci### on('error')
1587e41f4b71Sopenharmony_ci
1588e41f4b71Sopenharmony_cion(type: 'error', callback: ErrorCallback): void
1589e41f4b71Sopenharmony_ci
1590e41f4b71Sopenharmony_ci监听[SoundPool](#soundpool)的错误事件,该事件仅用于错误提示。
1591e41f4b71Sopenharmony_ci
1592e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1593e41f4b71Sopenharmony_ci
1594e41f4b71Sopenharmony_ci**参数:**
1595e41f4b71Sopenharmony_ci
1596e41f4b71Sopenharmony_ci| 参数名   | 类型     | 必填 | 说明                                                         |
1597e41f4b71Sopenharmony_ci| -------- | -------- | ---- | ------------------------------------------------------------ |
1598e41f4b71Sopenharmony_ci| type     | string   | 是   | 错误事件回调类型,支持的事件:'error',用户操作和系统都会触发此事件。 |
1599e41f4b71Sopenharmony_ci| callback | ErrorCallback | 是   | 错误事件回调方法:使用播放器的过程中发生错误,会提供错误码ID和错误信息。 |
1600e41f4b71Sopenharmony_ci
1601e41f4b71Sopenharmony_ciSoundPool回调的**错误分类**<a name = error_info></a>可以分为以下几种:
1602e41f4b71Sopenharmony_ci
1603e41f4b71Sopenharmony_ci| 错误码ID | 错误信息              | 说明                                                         |
1604e41f4b71Sopenharmony_ci| -------- | --------------------- | ------------------------------------------------------------ |
1605e41f4b71Sopenharmony_ci| 401      | Invalid Parameter.    | 入参错误,表示调用无效。                                     |
1606e41f4b71Sopenharmony_ci| 801      | Unsupport Capability. | 不支持该API能力,表示调用无效。                              |
1607e41f4b71Sopenharmony_ci| 5400101  | No Memory.            | 内存不足。 |
1608e41f4b71Sopenharmony_ci| 5400102  | Operation Not Allowed.   | 当前状态机不支持此操作,表示调用无效。                       |
1609e41f4b71Sopenharmony_ci| 5400103  | IO Error.             | I/O异常。 |
1610e41f4b71Sopenharmony_ci| 5400105  | Service Died.         | 播放进程死亡,音频池依赖的service端发生异常。|
1611e41f4b71Sopenharmony_ci
1612e41f4b71Sopenharmony_ci**示例:**
1613e41f4b71Sopenharmony_ci
1614e41f4b71Sopenharmony_ci```js
1615e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1616e41f4b71Sopenharmony_ci
1617e41f4b71Sopenharmony_ci//创建soundPool实例
1618e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1619e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1620e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1621e41f4b71Sopenharmony_ci  rendererFlags: 1
1622e41f4b71Sopenharmony_ci}
1623e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1624e41f4b71Sopenharmony_ci  if (error) {
1625e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1626e41f4b71Sopenharmony_ci    return;
1627e41f4b71Sopenharmony_ci  } else {
1628e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1629e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1630e41f4b71Sopenharmony_ci    soundPool.on('error', (error: BusinessError) => {
1631e41f4b71Sopenharmony_ci      console.error('error happened,and error message is :' + error.message)
1632e41f4b71Sopenharmony_ci      console.error('error happened,and error code is :' + error.code)
1633e41f4b71Sopenharmony_ci    })
1634e41f4b71Sopenharmony_ci  }
1635e41f4b71Sopenharmony_ci});
1636e41f4b71Sopenharmony_ci
1637e41f4b71Sopenharmony_ci```
1638e41f4b71Sopenharmony_ci
1639e41f4b71Sopenharmony_ci### off('error')
1640e41f4b71Sopenharmony_ci
1641e41f4b71Sopenharmony_cioff(type: 'error'): void
1642e41f4b71Sopenharmony_ci
1643e41f4b71Sopenharmony_ci取消监听音频池的错误事件。
1644e41f4b71Sopenharmony_ci
1645e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.Multimedia.Media.SoundPool
1646e41f4b71Sopenharmony_ci
1647e41f4b71Sopenharmony_ci**参数:**
1648e41f4b71Sopenharmony_ci
1649e41f4b71Sopenharmony_ci| 参数名 | 类型   | 必填 | 说明                                      |
1650e41f4b71Sopenharmony_ci| ------ | ------ | ---- | ----------------------------------------- |
1651e41f4b71Sopenharmony_ci| type   | string | 是   | 错误事件回调类型,取消注册的事件:'error'。 |
1652e41f4b71Sopenharmony_ci
1653e41f4b71Sopenharmony_ci**示例:**
1654e41f4b71Sopenharmony_ci
1655e41f4b71Sopenharmony_ci```js
1656e41f4b71Sopenharmony_ciimport { BusinessError } from '@kit.BasicServicesKit';
1657e41f4b71Sopenharmony_ci
1658e41f4b71Sopenharmony_ci//创建soundPool实例
1659e41f4b71Sopenharmony_cilet soundPool: media.SoundPool;
1660e41f4b71Sopenharmony_cilet audioRendererInfo: audio.AudioRendererInfo = {
1661e41f4b71Sopenharmony_ci  usage: audio.StreamUsage.STREAM_USAGE_MUSIC,
1662e41f4b71Sopenharmony_ci  rendererFlags: 1
1663e41f4b71Sopenharmony_ci}
1664e41f4b71Sopenharmony_cimedia.createSoundPool(5, audioRendererInfo, (error: BusinessError, soundPool_: media.SoundPool) => {
1665e41f4b71Sopenharmony_ci  if (error) {
1666e41f4b71Sopenharmony_ci    console.error(`Failed to createSoundPool`)
1667e41f4b71Sopenharmony_ci    return;
1668e41f4b71Sopenharmony_ci  } else {
1669e41f4b71Sopenharmony_ci    soundPool = soundPool_;
1670e41f4b71Sopenharmony_ci    console.info(`Succeeded in createSoundPool`)
1671e41f4b71Sopenharmony_ci    soundPool.off('error')
1672e41f4b71Sopenharmony_ci  }
1673e41f4b71Sopenharmony_ci});
1674e41f4b71Sopenharmony_ci```
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